Notes on the cars:

Brabham BT35 [39] (Allan Lader): Bought by Allan Lader in 1971 to replace the Brabham BT29 he had wrecked at Mexico City in June. Entered by Pacifico Inc. (Gresham, OR) Based on an annotation in a rae program, this car is believed to be BT35-39 but a F3 car appeared in Germany in 1972 said to have the same chassis number. Presumably the Brabham BT35 entered by Pacifico for Frank Fitch at Riverside 24 Sep 1972 and, by extension, the Brabham raced by Fitch in other west coast events in 1972.

Brabham BT35 [9] (Nick Craw): Chassis number given for Nick Craw's car in Autosport report of Arco Trophy race at Castle Combe, April 12, 1971, where the car debuts. [AS 15 Apr 1971 p20] Report says car is being taken over to North America, so presumably the BT35 used by Craw in races there in 1971, entered by Fred Opert.

Brabham BT29 [42] (Chuck Dietrich): Chester T 'Chet' Freeman (Columbus, OH) had been one of the first BT29 owners in August 1969 and had won the CenDiv FB title but his car had been sold to Fred Opert by November. In June 1970, he took delivery of a second BT29, blue again like his first car, but too late this time to retain his title. He appeared in only one Pro race, the Road America race on 18 Jul 1970. The Brabham was sold to Chuck Dietrich for 1971 and Dietrich easily won the 1971 CenDiv FB title in this car. Then unknown until the 1990s when it was being raced by an "R Cooke" in the US north west. This car with Asa Candler (Naples, FL) by about 1994 and raced in historics until sold to Chris Rose (San Francisco, CA) in 2007. Rose crashed the car in 2008 and part of the frame was replaced. History then unclear until advertised by Fantasy Junction in 2014.

Brabham BT29 [48] (Thomas E. Kornell): Sold new to Tom Kornell (Seal Beach, CA) and raced in SCCA Divisional and Pro Formula B in 1971 and 1972. Kornell added a sports car nose and a more substantial rollhoop amongst other changes. He ordered a Brabham BT41 for 1973 and the BT29 went to Fred Opert as a trade. Subsequent history unknown.

Brabham BT35 [32] (Raúl Pérez Gama): Raúl Pérez Gama was one of several Mexican customers of Fred Opert racing in the early 1970s. For 1972, he had a brand new orange-and-yellow Brabham BT35 and raced as part of the Fred Opert Racing team in Pro Formula B events with entry number #66. He retained the car for the two Bogotá races in early 1972 after which BT35-32 has been indentified as the car driven in SCCA events by Gordon Strom (Santa Cruz, CA or Sunnyvale, CA) in 1972 and for the following three seasons, retaining the car's original orange and yellow colours throughout. For 1976, Strom acquired a Chevron B29 and the Brabham may have been traded back to Fred Opert.

Brabham BT29 (Jiro Yoneyama): One of Fred Opert's customers for 1971 was Japanese driver Jiro Yoneyama, who raced a Brabham BT29 in US Formula B as part of Opert's team. His car was white and ran as #76. The Road America entry list noted it was usinga Hart engine. Not seen after Road America in August 1971.

Brabham BT29 (Mike Rand): Matt Spitzley (then from Aspen, CO), had a Brabham BT29 for 1970 entered by his Spitzford Racing team (Detroit, Michigan). For 1971 the car was sold to Mike Rand (Riverside, CT/Greenwich, CT) who raced it in NEDiv FB, finishing third overall. It then went to Peter Regna in New Jersey for 1972, after which Regna recalls selling it to Ken Duclos. Duclos, however, does not remember buying it.

Chevron B14 (Thomas C. Jones): In Sep 1970, a young Jim Trueman (Amlin, OH) raced a blue and silver Chevron in the Mid-Ohio 'Pro' Formula B race. Trueman would later found the Red Roof Inn motel chain and use his ensuing wealth to form the Truesports racing team and win the Indy 500 in 1986. After the 1970 season, he sold the Chevron to one-time F1 driver Tom Jones (Euclid, OH) who understood it to be a B14 and entered it as such. He raced it in 1971 and 1972 and then traded it to Ed Zink for the remains of the McLaren M22 that Zink's nephew Harry Ingle had crashed at Road America. The later history of the Chevron is unknown.

Brabham BT21C (Bill Middleton): Bill Middleton (Temple City, CA, an eastern suburb of Los Angeles) raced a black Brabham BT21C in Formula B in 1971. He acquired a new Lola T240 in late August 1971. Nothing more known

March 712M [71BM-2?] (Bill Gubelmann): New for Bill Gubelmann (Oyster Bay, NY) and used in British Formula Atlantic at the start of the season, winning at Oulton Park 21 March, and then in the SCCA Pro series. The car was often described as a 712M but it seems more likely that he used the same 712BM all season. Also raced with a BDA in the Formula A race at Lime Rock in Sep and in one round of the Canadian series. Sold via Joe Grimaldi's The Race Shop to Frank Del Vecchio (Trumbull, CT) and used in NEDiv FB and in a couple of rounds of the Pro series. Sold back via Joe Grimaldi at the end of 1972; Frank thinks it went to a Canadian.

Lola T240 [HU4] (Syd Demovsky): New to Syd Demovsky (Chicago, IL) and his red #11 Demovsky Racing Lola T240 in the 1971 Pro FB series. Retained for 1972 and again did a full season, still red and still using #11. Subsequent history unknown. A car with this chassis number raced by Bob Juggins in 1996/97.

Chevron B17b (Tom Outcault): Fred Opert ran a team five-car team in 1970 which included a Chevron B17B for himself and a sister car for Mike Eyerly. Opert's personal car was sold to Tom Outcault (Cranford, NJ) for 1971 who used it in NEDiv events and also in the Pro race at Road America in Aug 1971. Last seen when advertised by Outcault in Nov 1971.

Lola T240 (George "Skipp" Walther): Skipp Walther (Dayton, OH) raced a royal blue or blue/silver #24 Lola T240 in the 1971 US FB Pro series. His last appearance was at Road America in August where he retired for unknown reasons. He did not appear in the CenDiv or NEDiv FB points table, implying he limited his appearances to the Pro series. Nothing more known.

Brabham BT29 [38] (Mike Eyerly): The early history of this car is unknown but it is believed to be the blue-and-red Brabham BT29 entered by Bunny Ribbs (San Jose, CA) for Mike Eyerly in FB in 1971 (#63) and 1972 (#80). Jon Milledge also drove Ribbs car at Brainerd in Sep 1972. Ribbs, father of future Trans-Am star Willy T. Ribbs, advertised the car at the end of 1972. The next owner is unknown but the car was quickly on to Skip Jones who remembers buying it in San Francisco and that Ribbs had previously been involved. Jones raced the car in Regional events in 1973, winning the 1973 ICSCC Formula B championship, and then sold it to Allen Karlberg (Seattle, WA) who fitted a BDA for the 1974 season and raced it in SCCA Formula A and in Canadian Formula Atlantic. Jones believes that the car was sold and campaigned in eastern Canada with Kimberly Clark livery by Monique Proulx. Proulx drove Karlberg's March 712M in a Pro Atlantic race supporting the US GP at Watkins later that year so may have driven the older BT29 in local events.

Brabham BT29 [30] (Tom Reddy): After crashing his FC car at Lime Rock in August 1969, Dexter Farley (Waldorf, MD) part-exchanged the wrecked Brabham for a new Brabham BT29 from east coast dealer Joe Grimaldi, who had recently parted from Fred Opert. Farley drove the car in Pro events in 1970 as well as competing in NEDiv FB races. He retained it for 1971 when Tom Reddy raced it a couple of times and advertised it as "ser no 30" in October 1971. He also had it in the early part of 1972 before moving to Washington state and quitting racing. The next period of the car's life is unknown but it has been identified as the BT29 bought around 1974 from Bill Wonder by engine preparer Ted Wenz and raced in 1975. Wonder had been running it for a woman driver. Wenz later sold it to Texas but it re-emerged in the 1980s and was recently owned by Peter McLaughlin.

Brabham BT29 (Peter W Nye): Syd Demovsky (Chicago, IL) raced a yellow #11 Brabham BT29 in Pro events in 1970. At the end of the year the car was sold via Joe Grimaldi (Race Shop) to Peter Nye (Ann Arbor, MI) who fitted it with a HRE twin cam and raced it in Pro events and in some SCCA events through 1971. At the end of that season he sold it less engine to Jim Lloyd (Indianapolis, IN) who converted it to Formula C and won the CenDiv FB title in 1972 and 1973. Lloyd retained the car and later restored it to Formula B specification for vintage racing. He advertised it in fully-restored condition in February 1991.

Lola T240 [HU8] (Chuck Wannemacher): Identified as the red Lola T240 raced by Chuck Wannemacher (Ottoville, Ohio) in CenDiv and Pro FB events in 1971. Retained for 1972 but only seen rarely that season. To Ed Kasprowicz (Detroit, Michigan) for 1973 and raced in the Pro event at Watkins Glen that October. Retained for 1974 and 1975, continuing to race in CenDiv Regionals and Nationals. Subsequent history unknown.

Lola T240 (Rocky Moran): Rocky Moran (Arcadia, CA) raced a black #10 Lola T240 in the 1971 US FB Pro series. At the end of the season, Rocky recalls that he sold it to someone in Boulder, Colorado. This must be Bill Bachman (Boulder, CO/Nederland, CO) who raced a Transcendental Racing Lola in MWDiv Formula B in 1972. Bachman raced the Lola in a Wichita Region SCCA National at Hutchinson in June 1972, finishing second overall and winning the two-car FB class. He ended the season on 16 points and qualified for the Runoffs, Although he was a non-starter at Road Atlanta, his car was identified in the programme as a Lola T240. He retained the car for 1973, scoring four points in MWDiv by early June but he did not add to his score so it is possible this car went to fellow Boulder resident Carl McIntyre who scored 15 points in MWDiv FB that season. Subsequent history unknown.

Brabham BT29 [1] (John Angus): John Angus bought the first BT29, ordering the car as early as late summer of 1968 but taking delivery in August 1969. He ran it in Regionals in late 1969 before participating in the Pro series in 1970. He swapped from a Vegantune to a Racing Services engine for 1971 and continued in Nationals. Angus continued with the car in 1972, when Ron Dykes also drove it in the Bogotá races and again in 1973, when the car continued to be competitive at National level. Unknown after the end of the 1973 season.

McLaren M4B (Dick Drexler): Dick Drexler (Pewaukee, WI) had a red/grey McLaren M4A which he entered in local SCCA Formula B events from 1969 to 1972, usually as #5 or #51. A one-time Regional Executive of the SCCA Milwaukee Region, Richard W Drexler was president of Milwaukee-based oil refiner Lubricant, Inc. Records of him actually starting a race are rare but he was a regular entry at his local Road America and Blackhawk Farms circuits or even as far afield as Brainerd. He returned in 1973 and 1974 with the car now fitted with a 1-litre engine for Formula C, qualifying for the Run-Offs in 1973. He scored his last FC points in 1975. Drexler died in April 2003 and nothing more is known of the history of the McLaren.

Brabham BT29 (Rudolfo Junco): After Rudolfo Junco's wrecked his usual Brabham BT29 in an accident in the warm up session at the FB race at Monterrey, Mexico, in June 1971, he was allocated another BT29 as part of the Fred Opert Racing operation. This #80 car was advertised by Opert later with mention that it was the car driven by Bill Brack at Mosport Park 19 Sep 1971. It was then sold and may be the #80 car owned by Bunny Ribbs and entered by his Bunny Ribbs Plumbing & Heating for Mike Eyerly and Jon Milledge in 1972. If so, it is chassis BT29-38.

Brabham BT29 [41] (Dick Doherty): Bought new by Allen Karlberg (Seattle, WA) and raced in Formula B in the Pacific Northwest in 1970. Sold to Dick Doherty (Hollywood, CA) for Ron Dykes (Marina del Rey, CA) to race in early 1971 SoPac Div SCCA Nationals, where he was unbeatable in the category, and then by Doherty himself later in 1971 and in early 1972. Believed to have gone to Byron Hatten (Altadena, CA) and raced by him some time between mid-1972 and mid-1973 after which it was bought by Frank Monise Jr (Pasadena, CA). Monise raced it in 193/74 before crashing it heavily at Laguna Seca and wrecking the frame. He bought a second BT29 and eventually sold the remains of BT29-41 to Barry Blackmore (San Marino, CA) who had it rebuilt with a new frame fabricated by Wayne Mitchell and stamped 'W12191'. This rebuilt, rechassised car was sold to Australia and was with Mitch Evans (Auckland, NZ) by 2009.

Sources

The identification of individual cars in these results is based on the material presented elsewhere in this site and may in some cases contradict the organisers' orginal results.

1970 US FB results were compiled from Autoweek reports by Jim Thurman; 1971 results were transcribed from Autoweek by Allen Brown and 1972 results were compiled by Chris Townsend from an SCCA results publication.

The US Formula B series did not continue in 1973 but a race was organised in Caracas in March 1973 that fits here probably better than anywhere else, as do the occasional SCCA F/Atlantic and FB races in 1974 and 1975.

All comments, clarifications, corrections and additions are most welcome. Please email Allen if you can add anything.